:root{--bg: #faf7f2;--bg-card: #ffffff;--ink: #3a3a38;--ink-soft: #8a857c;--accent: #e8916a;--accent-soft: #f6d9c8;--line: #ece6dd;--radius: 20px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}#root{min-height:100vh}.app{max-width:480px;margin:0 auto;min-height:100vh;padding:0 20px calc(20px + env(safe-area-inset-bottom));display:flex;flex-direction:column}.card{background:var(--bg-card);border-radius:var(--radius);padding:24px;box-shadow:0 8px 24px #5a503c0f}.btn{display:block;width:100%;border:none;border-radius:999px;padding:16px 24px;font-size:17px;font-weight:600;cursor:pointer;transition:transform .1s ease,opacity .15s ease}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-ghost{background:transparent;color:var(--ink-soft);border:1px solid var(--line)}.input{width:100%;border:1px solid var(--line);border-radius:14px;padding:14px 16px;font-size:16px;color:var(--ink);background:#fff}.input:focus{outline:none;border-color:var(--accent)}.label{font-size:14px;color:var(--ink-soft);margin-bottom:8px;display:block}.hint{font-size:13px;color:var(--ink-soft)}.home{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:12px}.home .heart{font-size:64px;line-height:1;animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.home h1{font-size:32px;font-weight:700;margin:8px 0 0;letter-spacing:2px}.home .sub{font-size:16px;color:var(--ink-soft);line-height:1.6}.home .start{margin-top:32px;width:100%}.create,.join{flex:1;display:flex;flex-direction:column;justify-content:center;gap:16px}.auth{flex:1;display:flex;flex-direction:column;justify-content:center;gap:16px;padding:24px 0}.auth .heart{font-size:48px;line-height:1;text-align:center;animation:float 3s ease-in-out infinite}.auth h1{font-size:26px;font-weight:700;text-align:center;margin:0}.auth-form{display:flex;flex-direction:column;gap:14px}.invite-code{font-size:40px;font-weight:800;letter-spacing:8px;text-align:center;color:var(--accent)}.invite-tip{text-align:center}.header{text-align:center;padding:28px 0 8px}.header .names{font-size:22px;font-weight:700}.header .days{font-size:14px;color:var(--ink-soft);margin-top:4px}.section-title{font-size:15px;font-weight:600;color:var(--ink-soft);margin:20px 0 12px}.task-card{text-align:center}.task-card .cat{font-size:13px;color:var(--accent);font-weight:600}.task-card .content{font-size:20px;font-weight:600;line-height:1.5;margin:12px 0}.task-card .task-hint{font-size:13px;color:var(--ink-soft)}.options{display:flex;flex-direction:column;gap:10px;margin-top:16px}.option{display:block;width:100%;text-align:left;border:1px solid var(--line);background:#fff;border-radius:14px;padding:14px 16px;font-size:16px;cursor:pointer;color:var(--ink)}.option.selected{border-color:var(--accent);background:var(--accent-soft);font-weight:600}.reveal-countdown{font-size:96px;font-weight:800;text-align:center;color:var(--accent);animation:pop .9s ease-in-out}@keyframes pop{0%{transform:scale(.5);opacity:0}50%{transform:scale(1.15)}to{transform:scale(1);opacity:1}}.answer-pair{display:flex;flex-direction:column;gap:16px}.answer-box{background:#fff;border-radius:var(--radius);padding:18px;box-shadow:0 6px 18px #5a503c0d}.answer-box .who{font-size:13px;color:var(--ink-soft);margin-bottom:8px}.answer-box img{width:100%;border-radius:12px}.answer-box .text{font-size:16px;line-height:1.5;word-break:break-word}.feedback{text-align:center;font-size:17px;font-weight:600;margin:16px 0}.timeline{flex:1}.timeline .count{text-align:center;font-size:14px;color:var(--ink-soft);margin-bottom:16px}.memory-item{margin-bottom:16px}.memory-item .date{font-size:13px;color:var(--ink-soft);margin-bottom:6px}.memory-item .task-line{font-size:16px;font-weight:600}.links{display:flex;gap:12px;justify-content:center;margin-top:20px}.link{color:var(--accent);font-size:15px;font-weight:600;cursor:pointer}